package com.flmz.common.core.utils;

import cn.hutool.core.util.StrUtil;
import com.alibaba.ttl.TransmittableThreadLocal;

import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

public class ThreadLocalUtil {
	private static final TransmittableThreadLocal<Map<String, Object>> THREAD_LOCAL = new TransmittableThreadLocal<>();

	public static void set(String key, Object value) {
		Map<String, Object> map = getLocalMap();
		map.put(key, value == null ? StrUtil.EMPTY : value);
	}

	public static <T> T get(String key, Class<T> clazz) {
		Map<String, Object> map = getLocalMap();
		return (T) map.getOrDefault(key, null);
	}

	public static Map<String, Object> getLocalMap() {
		Map<String, Object> map = THREAD_LOCAL.get();
		if (map == null) {
			map = new ConcurrentHashMap<String, Object>();
			THREAD_LOCAL.set(map);
		}
		return map;
	}

	public static void remove() {
		THREAD_LOCAL.remove();
	}
}